ICD-10-CM code · FY2027
F40.228 Other natural environment type phobia
BillableValid for claims as a specific diagnosis code
About F40.228
- Code
- F40.228
- Billable
- Yes
- Short description
- Other natural environment type phobia
- Category
- F40 Phobic anxiety disorders
- Block
- F40-F48 Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders
- Chapter
- 5 Mental, Behavioral and Neurodevelopmental disorders
- Code set
- FY2027, October 1, 2026 to September 30, 2027
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Coding notes for F40.228
No notes of its own; the notes below apply from the codes above it.
Also applies, from F40.2 Specific (isolated) phobias
Excludes2 Not part of this condition, but a patient can have both: report both codes when both apply.
Chapter 5 notes (apply to every code in it)
Includes Conditions this code covers.
- disorders of psychological development
Related codes in F40.22
- F40.220 Fear of thunderstormsBillable
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See 2MM+ plansICD-10-CM FY2027 code set, as published by the CDC National Center for Health Statistics (NCHS) and CMS, effective October 1, 2026 to September 30, 2027. Codes, titles and notes are shown as published. Check payer rules and the official guidelines before billing. This page is not medical advice.
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